Lattice Relaxation of Photo-Excited States in Conjugated Polymers

  • Guo-Zhong Wen
  • Wu-Pei Su
Conference paper
Part of the Springer Series in Solid-State Sciences book series (SSSOL, volume 124)

Abstract

Polyacetylene is a prototypical conjugated polymer which exhibits lattice dimerization and which supports solitons (kinks in the dimerization pattern). We have carried out a theoretical study of the lattice relaxation of some low-lying excited states in polyacetylene. Degenerate perturbation, strong coupling and density matrix renormalization group methods are employed for the calculations. Based on the results of those calculations, we discuss the relaxation of the major low-lying photoexcited states into solitons in their various spin and charge states.

Keywords

Manifold Petroleum Soliton Clarification Nonin 

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References

  1. [1]
    A. J. Heeger, S. Kivelson, J. R. Schrieffer, and W. P. Su, Rev. Mod. Phys. 60, 781(1988).ADSCrossRefGoogle Scholar
  2. [2]
    W. P. Su, J. R. Schrieffer, and A. J. Heeger, Phys. Rev. B 22, 2099 (1980).ADSCrossRefGoogle Scholar
  3. [3]
    W. P. Su and J. R. Schrieffer, Proc. Natl. Acad. Sei. U. S. A. 77, 5626(1980).ADSCrossRefGoogle Scholar
  4. [4]
    R. Ball, W. P. Su, and J. R. Schrieffer, J. de Physique, Colloque C3 44, 429 (1933)Google Scholar
  5. [5]
    L. Rothberg, T. M. Jedju, S. Etemad, and G. L. Baker, Phys. Rev. Lett. 57, 3229(1986); L. Rothberg, T. M. Jedju, P. D. Townsend, S. Etemad, and G. L. Baker, Phys. Rev. Lett. 65, 100(1990).ADSCrossRefGoogle Scholar
  6. [6]
    C. V. Shank, Y. Ren, R. L. Fork, J. Orenstein, and G. L Baker, Phys. Rev. Lett, 49, 1660(1982).ADSCrossRefGoogle Scholar
  7. [7]
    X. Wei, B. C. Hess, Z. V. Vardeny, and F. Wudl, Phys. Rev. Lett. 68, 666 (1992).ADSCrossRefGoogle Scholar
  8. [8]
    S. Kivelson and W. K. Wu, Phys. Rev. B 34, 5423(1986).ADSCrossRefGoogle Scholar
  9. [9]
    R. V. Bensasson, E. J. Land, and T. G. Truscott, Flash Photolysis and Pulse Radiolysis (Pergamon, Oxford, 1983).Google Scholar
  10. [10]
    W. P. Su, Phys. Rev. Lett. 74, 1167(1995).ADSCrossRefGoogle Scholar
  11. [11]
    K. Hashimoto, Chem. Phys. 80, 253(1983).ADSCrossRefGoogle Scholar
  12. [12]
    J. Takimoto and M. Sasai, Phys. Rev. B 39, 8511(1989).ADSCrossRefGoogle Scholar
  13. [13]
    S. R. White, Phys. Rev. Lett. 69, 2863 (1992); Phys. Rev. B 48, 10345 (1993).ADSCrossRefGoogle Scholar
  14. [14]
    A. D. McLachlan, Mol. Phys. 2, 271(1959).ADSCrossRefGoogle Scholar
  15. [15]
    G. W. Hayden and E. J. Meie, Phys. Rev. B 34, 5484(1986).ADSCrossRefGoogle Scholar
  16. [16]
    P. Tavan and K. Schulten, Phys. Rev. B 36, 4337(1987).ADSCrossRefGoogle Scholar
  17. [17]
    D. K. Campbell, J. T. Gammel, H. Q. Lin, and E. Y. Loh, Synth. Met., 49–50, 631(1992).CrossRefGoogle Scholar
  18. [18]
    J. T. Gammel and D. K. Campbell, Synth. Met. 55–57, 4638(1993).Google Scholar
  19. [19]
    Z. V. Vardeny, in Relaxation in Polymers, edited by T. Kobayashi (World Scientific Publishing Co., 1993).Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Guo-Zhong Wen
    • 1
  • Wu-Pei Su
    • 1
  1. 1.Department of Physics and Texas Center for SuperconductivityUniversity of HoustonHoustonUSA

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